Cut-and-fill three-dimensional simulation test device and method

Abstract

The invention discloses a cut-and-fill three-dimensional simulation test device and method. The device mainly comprises a box-shaped table type test model frame, a cut-and-fill simulation system, an equivalent loading system and a wireless information acquisition system. The cut-and-fill three-dimensional simulation test device can truly reproduce the concrete process of simulating the fully-mechanized working surface mining, goaf filling, filler material compacting and the like in real conditions; and the wireless information acquisition system can monitor the three-dimensional change conditions of pressure and displacement in goaf filler and overlying strata on a coal face in the filling process in real time, and truly reflect the cut-and-fill field conditions through computer image simulation. The cut-and-fill three-dimensional simulation test device has simple structure and is convenient to operate; and the test method is stable and reliable, and has high practical values.

Description

technical field [0001] The invention relates to a similar material simulation test device and method, in particular to a filling mining three-dimensional simulation test device and method suitable for studying "three-down" filling mining rock formation movement characteristics and goaf filling strength in mining engineering. technical background [0002] As a country with coal as the main energy source, my country's rapid economic development requires a rapid increase in coal production. However, many mining areas are facing problems such as the depletion of resources, environmental damage, and the "three-down" coal pressure is too large to be mined. The gangue filling coal mining technology that uses the underground goaf to dispose of gangue can not only recover the "three down" coal pressure, reduce the discharge of coal mine solid waste on the ground, liberate the mine's lifting capacity, but also reduce deep mining and subsidence disasters. One of the key technical appr...

AI Technical Summary

Problems solved by technology

The existing three-dimensional model test device can only simulate the mining of the working face, but cannot simulate the fully mechanized mining and filling process of coal seam mining and goaf filling simultaneously

Images